:root{color-scheme:dark;--bg:#0c111b;--panel:#121b29;--line:#28354a;--text:#e4ebf4;--muted:#9caec4;--accent:#72d8e3}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.55 system-ui,sans-serif}
header{padding:24px 30px;display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid var(--line)}
h1{font-size:28px;letter-spacing:-1px;margin:5px 0}h2{font-size:24px}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--accent);font-weight:700}
.actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.button,button{display:inline-block;border:1px solid var(--accent);border-radius:8px;padding:10px 14px;background:var(--accent);color:#09212b;font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
.secondary{background:transparent;color:var(--text);border-color:var(--line)}a{color:var(--accent)}form{margin:0}
#status{padding:10px 30px;background:#152337;color:var(--muted)}.workspace{display:grid;grid-template-columns:260px minmax(300px,1fr) minmax(320px,38%);height:calc(100vh - 148px);min-height:550px}
aside{padding:20px;border-right:1px solid var(--line);overflow:auto}input{width:100%;margin:10px 0;padding:12px;border:1px solid var(--line);border-radius:8px;background:#0b1422;color:var(--text);font:inherit}
#counts{font-size:12px;color:var(--muted)}nav button{display:block;text-align:left;width:100%;background:transparent;border:0;border-radius:6px;color:var(--text);font-size:13px;margin-bottom:4px;padding:9px}
nav button:hover,nav button.selected{background:#22364d;color:var(--accent)}.graph-panel{position:relative;overflow:hidden}.graph-toolbar{position:absolute;top:16px;left:16px;right:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;z-index:1}
canvas{width:100%;height:100%;display:block;touch-action:none;cursor:grab}.graph-help{position:absolute;bottom:18px;left:18px;right:18px;color:var(--muted);font-size:11px;pointer-events:none}
#reader{padding:26px;overflow:auto;border-left:1px solid var(--line);background:var(--panel);overflow-wrap:anywhere}
#reader h1{font-size:26px}#reader table{border-collapse:collapse;display:block;overflow:auto}th,td{border:1px solid var(--line);padding:8px}pre{white-space:pre-wrap;background:var(--bg);padding:14px}blockquote{margin-left:0;border-left:3px solid var(--accent);padding-left:16px;color:var(--muted)}
.login{display:grid;place-items:center;min-height:100vh}.login-card{max-width:480px;padding:40px;border:1px solid var(--line);border-radius:16px;background:var(--panel)}.login-card button{width:100%;margin-top:12px}.login-card p{color:var(--muted)}
@media(max-width:1100px){.workspace{grid-template-columns:220px 1fr;height:auto}.graph-panel{height:60vh}#reader{grid-column:1/-1;max-height:70vh}header{align-items:flex-start;flex-direction:column}}
@media(max-width:600px){.workspace{display:block}aside{max-height:260px}.graph-panel{height:55vh}header{padding:20px}.actions{font-size:12px}}